What is the phase difference between two waves that are 180° out of phase?

What is the phase difference between two waves that are 180° out of phase?

Step 1: Understand what 'phase' means in waves. Phase refers to the position of a point in time on a waveform cycle.
Step 2: Know that waves can be in phase (aligned) or out of phase (misaligned).
Step 3: Recognize that a phase difference of 180° means the waves are completely opposite to each other.
Step 4: Realize that when two waves are 180° out of phase, they cancel each other out when they meet.
Step 5: This cancellation is called destructive interference, which occurs when the peaks of one wave align with the troughs of another.

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